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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.text.style.cts;
     18 
     19 
     20 import static org.junit.Assert.assertEquals;
     21 
     22 import android.os.Parcel;
     23 import android.support.test.filters.SmallTest;
     24 import android.support.test.runner.AndroidJUnit4;
     25 import android.text.TextPaint;
     26 import android.text.style.SubscriptSpan;
     27 
     28 import org.junit.Test;
     29 import org.junit.runner.RunWith;
     30 
     31 @SmallTest
     32 @RunWith(AndroidJUnit4.class)
     33 public class SubscriptSpanTest {
     34     @Test
     35     public void testConstructor() {
     36         SubscriptSpan subscriptSpan = new SubscriptSpan();
     37 
     38         Parcel p = Parcel.obtain();
     39         try {
     40             subscriptSpan.writeToParcel(p, 0);
     41             p.setDataPosition(0);
     42             new SubscriptSpan(p);
     43         } finally {
     44             p.recycle();
     45         }
     46     }
     47 
     48     @Test
     49     public void testUpdateMeasureState() {
     50         // the expected result is: tp.baselineShift -= (int) (tp.ascent() / 2)
     51         SubscriptSpan subscriptSpan = new SubscriptSpan();
     52 
     53         TextPaint tp = new TextPaint();
     54         float ascent = tp.ascent();
     55         int baselineShift = 100;
     56         tp.baselineShift = baselineShift;
     57 
     58         subscriptSpan.updateMeasureState(tp);
     59         assertEquals(baselineShift - (int) (ascent / 2), tp.baselineShift);
     60     }
     61 
     62     @Test(expected=NullPointerException.class)
     63     public void testUpdateMeasureStateNull() {
     64         SubscriptSpan subscriptSpan = new SubscriptSpan();
     65 
     66         subscriptSpan.updateMeasureState(null);
     67     }
     68 
     69     @Test
     70     public void testUpdateDrawState() {
     71         // the expected result is: tp.baselineShift -= (int) (tp.ascent() / 2)
     72         SubscriptSpan subscriptSpan = new SubscriptSpan();
     73 
     74         TextPaint tp = new TextPaint();
     75         float ascent = tp.ascent();
     76         int baselineShift = 50;
     77         tp.baselineShift = baselineShift;
     78 
     79         subscriptSpan.updateDrawState(tp);
     80         assertEquals(baselineShift - (int) (ascent / 2), tp.baselineShift);
     81     }
     82 
     83     @Test(expected=NullPointerException.class)
     84     public void testUpdateDrawStateNull() {
     85         SubscriptSpan subscriptSpan = new SubscriptSpan();
     86 
     87         subscriptSpan.updateDrawState(null);
     88     }
     89 
     90     @Test
     91     public void testDescribeContents() {
     92         SubscriptSpan subscriptSpan = new SubscriptSpan();
     93         subscriptSpan.describeContents();
     94     }
     95 
     96     @Test
     97     public void testGetSpanTypeId() {
     98         SubscriptSpan subscriptSpan = new SubscriptSpan();
     99         subscriptSpan.getSpanTypeId();
    100     }
    101 
    102     @Test
    103     public void testWriteToParcel() {
    104         Parcel p = Parcel.obtain();
    105         try {
    106             SubscriptSpan subscriptSpan = new SubscriptSpan();
    107             subscriptSpan.writeToParcel(p, 0);
    108             p.setDataPosition(0);
    109             new SubscriptSpan(p);
    110         } finally {
    111             p.recycle();
    112         }
    113     }
    114 }
    115